Question

Pleaseee help!!! Q: A man weighing 980 n on earth weighs only 163 n on the moon. His mass on the moon is ___ kg

Answer 1

Answer: The mass of the man on moon is 100 kg

Explanation:

Weight is the force exerted by the body on the surface. It s not same at every point in the universe. It is also defined as the mass multiplied by the acceleration of the object.

Mass is the actual amount of matter of an object. It remains the same at every point in the universe.

Mathematically,

$W=m\times a$

where,

W = weight of the man on Earth = 980 N

m = mass of the man = ?

a = acceleration due to gravity on Earth = $9.8m/s^2$

Putting values in above equation, we get:

$980kg.m/s^2=m\times 9.8m/s^2\\\\m=\frac{980}{9.8}=100kg$

Mass of the man on Earth = Mass of the man on Moon = 100 kg

Hence, the mass of the man on moon is 100 kg

Answer 2

His mass on the moon is 50 Kg